g-rove



2 SheetsShee't 1.

(No Model.)

G. W. GROVE. BOOK HOLDER.

No. 483,611. Patented Oct. 4, 1892.

2 Sheets-Sheet 2.

(No Model.)

G. W. GROVE.

BOOK HOLDER.

No. 483,611. Patented Oct. 4, 1892.

qwitmeqoeo awuemtoz o. h. @1 1 UNITED STATES PATENT OFFIC GEORGE W.GROVE, OF WVASHINGTON, DISTRICT OF COLUMBIA.

BOOK-HOLDER.

SPECIFICATION forming part of Letters Patent No. 483,611, dated October4, 1892.

Application filed March 10, 1890.

T0 whom it may concern.-

Be it known that I, GEORGE "W. GROVE, a citizen of the United States,residing at Washington, in the District of Columbia, have invented newand usefullmprovements in Book- Holders or Holders for Heavy Books orPapers of Any Kind; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to book-holders or holders for heavy books orpapers, and is designed, primarily, for attachment to any book shelf ortable, allowing the book to be drawn out, examined, and pushed backwithout lifting or removing it from its holder.

My object is, secondly, to have the body of the holder easily detachablefrom a shelf or table and when so detached capable of being rigidlysecured by means of an adjustable joint to a single metal upright rodsupported on three or more legs, thus being easily moved from room toroom, as required, the adj ustable joint holding the book and holder atany inclination.

My invention consists in certain constructions, combinations, andarrangements of parts hereinafter described and specifically claimed.

In the accompanying drawings like letters indicate like parts.

Figure 1 is an isometric View showing the holder attached to and pushedin upon the shelf. Fig. 2 is a similar view of the shelf, shelf-plate,and book-guard with book-holder removed. Fig. 3 is abottom plan view ofthe book-holder. Fig. 4; is a perspective view of one endoftherockingplate,showing the means for adjusting the inclination. Fig.5 is a similar view showing a portion of one of the rods on the holder.Fig. 6 is a perspective of the adjustable joint on the upright rod forsupporting the book-holder. Fig. 7 is a perspective view of the foot ofthe book-guard. Fig. 8 is a detail sectional view showing the manner ofpivoting the rocking plate. Fig. 9 is a detail sectional view taken online 00 a: of Fig. 4.

In the drawings, A represents a sh elf of a book-case or a similarsupport upon which the book is to be placed. Secured to this Serial No.343,431. (No model.)

shelf is a plate B, preferably of metal and shown in the presentinstance as consistlng of an enlarged cross piece or head B and asmaller cross-head B which are connected by a central strip 13 the wholebeing secured to the shelf, table, or other device upon which the bookistobe supported. This plate is provided with a number of uprightprojections 17, extending upward and serving as a means of attaching abook-guard C, which in the present instance is shown as a skeleton frameconsisting of two cross-bars c c and two uprights c 0', connecting thecross-bars and provided at their lower ends with socket-pieces 0 as moreclearly shown by Fig. 6, which are adapted to fit the uprightprojections 19 of the frame B and support the guard or guards O, thepurpose of which is to prevent the ad acent books which may be arrangedon the shelf or table from interfering with the operation of thebook-holder. Also connected to the shelf-plate B are two lugs or projections D, to which is pivoted a rocking plate E by means of thethumb-screws c. This plate E can be tilted or rocked on its pivots, sothat the book-holder may be held at an inclination to the shelf ortable, and I provide means whereby the amount of tilting or rocking canbe regulated. In the present instance I have shown the lugs orprojections D as provided with flanges or extensions d, overhanging theinner edge of the rocking plate, and to these flanges I attach springse, the free ends of which bear upon the rocking plate E and permit it tobe tilted against the pressure of the springs. Also connected to theoverhanging as a stop to limit the movement of the rocking plate, andthis wedge may be adjusted by a screw (1 toward or from the springs e,and thereby the movement of the rocking plate can be controlled by itsinner edge impinging or bearing against the surface of the incline 01.Connected to the rocking plate are the lugs E, having perforationsthrough them and serving as bearings for the sliding rods F in a mannerhereinafter explained.

Thebook-holder proper consists, essentially, of a base-plate G or frame,to the under side of which the rods F are secured, the rods beingconnected to the base-plate by being secured to the downturned end 9 ofthe baseflanges d is a wedge d or incline, which serves plate G.Connected to this base-plate are the side bars H, supporting the sides Iof the book-holder. These sides are pivotally connected to the sidebars, as by hinges z, and in order to maintain them in their upright orvertical position and allow them to be swung or opened to support thebook in its opened condition I provide supports or locking-bars J. Theselocking-bars consist of two portions, one j of which is pivotallyconnected to the side bars by lug h, extending laterally therefrom. Theother portion j consists of a plate or rod hinged to the lower portionjand slidin g between the extensions 2" of the hinges 'b, and thisportion is provided with one or 7 more notches, with which engages astop device, as F, pivotally connected to the extensions Z. WVith thisconstruction it will be seen that the sides I can be supported in anupright position, as shown in Fig. 1, by the side-supports J, and, whendesired, by releasing the stop or catch 1' the portion j of theside-support will slide between the extensions 2' and allow the sides tobe inclined at the desired angle to permit ready reference to the book,and the sides can be lockedin this positlon by the stop engaging one ofthe notches 3' In order that the book-holder may be adjusted to holdbooks of various thicknesses, I adjustably connect the side bars H andthe sides carried thereby to the base-plate G, and

I have shown the side bars provided witharms or extensions H, passingthrough slots g in the rolled-under edge of the base-plate and throughstraps 9 secured to the under side of base-plate G. In Fig. 3 these sidebars are shown as extended nearly to their outer- ..mostposition, and inorder to adjust these side bars I have shown the arms H as provided withpins or studs h, preferably arranged near their upper and inner corners,and arranged to engage these pins or studs are the fan-shaped plates K,having inclined slots 7c. These plates K are connected by a bar or rodL, sliding in straps connected to the under side of the base-plate G,and a screw M, the head of which passes through the downturned end 9 ofthe base-plate Gand serves to adjust the movement of the plates K andtheir connecting-bar. It will thus be seen that when the plates K aremoved to the left (referring to Fig. 3) the pins or studs h on the armsH will be caused to approach each other by the inclined slots is in theplates K, and when the plates are moved to the right the arms are forcedoutward, and the side bars are therefore adjusted to fit the book it isdesired to support.

As before stated, the rods F, which are secured to the base-plate G,pass through the lugs E on the rocking plate E, which'is pivoted to theshelf-plate secured to the shelf, and it is apparent that by this meansthe support can be pushed in or moved outward upon the shelf to anydesired distance, and when it is moved outward the support and itscontents can be tilted to a convenient position for reference to thebook, the degree of tilting being regulated by the inclined blocks 61',controlling the rocking plate E.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

'1. The'combinatio'n of the side bars, the

sides hinged thereto by hinges having upward extensions '5, theside-supports consisting of lower portions pivoted to the side bars andupper portions pivoted to the lower portions and sliding between theextensions 11, and dogs mounted on the sides and engaging the said upperportions.

2. The combination of the shelf and the shelf-plate secured thereto, therocking plate pivotally mounted on the shelf-plate, and the book-holderhaving side bars mounted in said rocking plate and adapted to slidelongitudinally therein.

3. The combination of the shelf-plate, the rocking plate mountedthereon, and the sliding wedges mounted onthe shelf-plate above therocking plate and adapted to limit the play of the same.

4. The combination of the shelf-plate, the rocking plate mountedthereon, the sliding holder carried by the said rocking plate, and

laterally-adjustablesides 'mounted on the holder.

5. The combination of the shelf-plate, the rocking plate pivotallymounted thereon, the

springs secured to the shelf-plate and bearing down on the rockingplate, and adjustable stops on the shelf-plate, limiting the movement ofthe rocking plate.

6. The combination of the shelfplate, the rocking plate, set-screwsmounted in the shelf-plate and serving as pivots for the rocking plate,and the sliding book-holder carried by the rocking plate.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

GEORGE W. GROVE.

Witnesses:

WM. J. PALMER, F. L. AT'IWELL.

